28409595597 has 6 divisors (see below), whose sum is σ = 41036082542. Its totient is φ = 18939730392.

The previous prime is 28409595551. The next prime is 28409595601. The reversal of 28409595597 is 79559590482.

28409595597 is a `hidden beast` number, since 28 + 4 + 0 + 9 + 59 + 559 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16315974756 + 12093620841 = 127734^2 + 109971^2 .

It is not a de Polignac number, because 28409595597 - 2¹² = 28409591501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28409595497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1578310858 + ... + 1578310875.

Almost surely, 2^28409595597 is an apocalyptic number.

It is an amenable number.

28409595597 is a deficient number, since it is larger than the sum of its proper divisors (12626486945).

28409595597 is a wasteful number, since it uses less digits than its factorization.

28409595597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3156621739 (or 3156621736 counting only the distinct ones).

The product of its (nonzero) digits is 40824000, while the sum is 63.

The spelling of 28409595597 in words is "twenty-eight billion, four hundred nine million, five hundred ninety-five thousand, five hundred ninety-seven".